ASTM A234 WPB LR Elbow ASME B16.9 90 Degree LR 4 Inch SCH 120 - Derbo
ASTM A234 WPB Pipes Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service | ASTM A234 butt weld pipe fittings,A182 forged pipe fittings,B16.5 weld neck flange,API 5L